JavaScript定時器演示

鍾超發表於2011-11-25
JavaScript定時器
<html>
<head>
<script type="text/javascript">
var g_percentFlag;
var g_percent = 0;
var g_count = 0;
function intervalPercent(path) {
	g_count += 1;
	document.getElementById("msg3").value = g_count;
	if (g_percent < 100) {
		g_percent += 20;
		document.getElementById("msg2").value = g_percent + "%";
	} else if (g_percent == 100) {
		document.getElementById("msg2").value = g_percent + "%";
		clearInterval(g_percentFlag);
		g_percent = 0;
	} else {
		document.getElementById("msg2").value = "Error.";
	}
}

function getPercentage(path){
	g_percentFlag = setInterval("intervalPercent(\"" + path + "\")", 200);	
}
</script>
</head>

<body>
<!-- <input type="button" value="click" onclick="a=" /> -->
<input id="msg2" type="text" /><br />
<input id="msg3" type="text" /><br />
<script>
	getPercentage("Hello!");
</script>
<input type="text" value="nothing" />
<input type="button" value="click" />
</body>
</html>

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